To start the test out, Matt up-armors his faithful test dummy with body armor consisting of cardboard and Flex Tape. He then proceeds to shoot the dummy with a suppressed .22lr pistol, a Ruger Mark IV, that has had plenty of work done to it, including a pretty spectacular skeletonizing job on the barrel shroud. A single layer of tape is used in the first test, and fails quite predictably. He keeps adding layers until the tape actually stops the round. How many layers? You’ll have to watch the video.